The smooth endoplasmic reticulum.
It is 'upstream contiguous' from the protein producing ribosomes located in the rough endoplasmic reticulum; as well, it is 'downstream contiguous' with the Cell's export assembly - the Golgi apparatus.
Proteins are specifically addressed as to their destination! Not all are Labelled for Export!
The vesicles because it contains and transports various substances such as protein
well, ribosomes make proteins within a cell, but mitochondria have proteins.
cannot make new proteins and will worn out within a few months
Every cell contains DNA within the nucleus, containing the blueprint to build many different proteins in the cell. Different signals can cause embryonic cells to select specific parts of the DNA which can then be used to synthesize proteins, eventually building different cell types.
They are used in Facilitated Diffusion, helping to transport ions, macromolecules, and other substances incapable of entering a cell by themselves to cross through the plasma membrane of the cell.
The endoplasmic reticulum transports newly made proteins within the cell. Proteins are synthesized on ribosomes attached to the rough endoplasmic reticulum, and then they are folded and transported to their final destination within or outside the cell.
The Golgi body transports proteins to various destinations within and outside the cell. It modifies, sorts, and packages proteins into vesicles that can be sent to different organelles within the cell or secreted outside the cell.
Exocytosis transports large molecules, such as proteins and lipids, out of the cell. These molecules are packaged into vesicles within the cell and then released to the external environment when the vesicles fuse with the cell membrane.
ribosomes make proteins and the endoplasmic reticulum transports materials through the cell
proteins
A vesicle is a small, membrane-bound sac that stores and transports substances within a cell. Vesicles are involved in processes such as transporting proteins and lipids within the cell, as well as in communication between cells.
A conveyor belt in a factory can be compared to the smooth endoplasmic reticulum (ER) in a cell. Just as a conveyor belt transports materials smoothly within a factory, the smooth ER transports molecules like lipids and proteins within a cell.
The Cytoplasm
The Golgi body
The endoplasmic reticulum (ER) is the cell part responsible for transporting proteins and other molecules within the cell. The rough ER, with ribosomes attached to its surface, is involved in protein synthesis and transport. The smooth ER plays a role in lipid synthesis and detoxification.
The Golgi appartus stores, packages, and transports chemicals within a cell.
Golgi Apparatus